The two in Vancouver are related as far as I know. Just because it is Spanish for Taco Shop doesn't mean anyone can use it (I think). Pizza Hut is English for 'Pizza Hut' but there is still only one company using that name.
It is more like trying to franchise and copyright the name Sandwich Shop. I don't think that is going to happen.
Last Edit: Jun 26, 2014 11:04:22 GMT -8 by Cysquatch